bool SkImage_Generator::onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRB,
int srcX, int srcY, CachingHint chint) const {
SkBitmap bm;
if (kDisallow_CachingHint == chint) {
if (fCache->lockAsBitmapOnlyIfAlreadyCached(&bm)) {
return bm.readPixels(dstInfo, dstPixels, dstRB, srcX, srcY);
} else {
// Try passing the caller's buffer directly down to the generator. If this fails we
// may still succeed in the general case, as the generator may prefer some other
// config, which we could then convert via SkBitmap::readPixels.
if (fCache->directGeneratePixels(dstInfo, dstPixels, dstRB, srcX, srcY)) {
return true;
}
// else fall through
}
}
if (this->getROPixels(&bm, chint)) {
return bm.readPixels(dstInfo, dstPixels, dstRB, srcX, srcY);
}
return false;
}
